Dwelling in magmatic caverns far beneath the world's surface, the great dragon Ghodroon has the power to sear foes with boiling lava and superheated ash. He has a fondness for gems and precious metals, and will begrudgingly work with select humans to increase his hoard.

Ghodroon is based on Fafnir, the son of the dwarf king Hreidmar and the brother of Regin and Ótr in Norse mythology. After Ótr was killed by Loki, Hreidmar received the cursed gold of the dwarf Andvari's as repayment for the loss of his son. Fafnir then killed Hreidmar to get all the gold for himself. He became very ill-natured and greedy, eventually turning into a serpent or dragon (symbol of greed) to guard his treasure. Regin plotted revenge and sent his foster-son Sigurd to slay the dragon. Corrupted by greed, Regin planned to kill Sigurd too to take all the treasure to himself. His plan failed however when Sigurd, having eaten part of Fafnir's cooked heart and acquired the knowledge to understand birds, was warned by birds.